Acipenser transmontanus Richardson, 1836

White sturgeon

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Acipenseriformes \| Acipenseridae \| Acipenserinae
Synonyms	Acipenser aleutensis, ... more
Common names	Esturgeon blanc, Esturión blanco, Columbia sturgeon, ... more

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Image of Acipenser transmontanus (White sturgeon)

Picture by Østergaard, T.

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Main reference

Page, L.M. and B.M. Burr. 1991. (Ref. 5723)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 610 cm TL male/unsexed; (Ref. 1998); common length : 21.0 cm TL male/unsexed; (Ref. 12193); max. published weight: 816.0 kg (Ref. 27436); max. reported age: 104 years (Ref. 39377)

Environment

Demersal; anadromous (Ref. 51243); freshwater; brackish; marine; depth range 1 - 122 m (Ref. 27547)

Climate / Range

Temperate; ? - 23°C (Ref. 1998); 58°N - 24°N, 163°W - 107°W (Ref. 54269)

Eastern Pacific: Alaska Bay to Monterey, California, USA. Landlocked in Columbia River drainage, Montana, and perhaps Lake Shasta in California, USA. Translocated to lower Colorado River, Arizona in USA. Reported from northern Baja California, Mexico (Ref. 2850, 27436). Considered vulnerable in Canada (Ref. 6866). International trade restricted (CITES II, since 1.4.98).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 44 - 48; Anal soft rays: 28 - 31. Distinguished by the 2 rows of 4 to 8 bony plates on a midventral line between the anus and anal fin, and about 45 rays in the dorsal fin (Ref. 27547). Gray or brownish above, paler below; fins gray (Ref. 27547).

Spends most of its time in the sea, usually close to shore (Ref. 27547). Enters estuaries of large rivers and moves far inland to spawn (Ref. 5723). Individuals larger than 48.3 cm feed mainly on fishes; smaller ones feed mainly on chironomids, but also takes small crustaceans, other insects and mollusks (Ref. 1998). Feeding ceases just before spawning (Ref. 1998). Excellent food fish that is sold fresh, smoked or frozen (Ref. 9988). Eggs marketed as caviar (Ref. 1998). In the past, the airbladder was made into isinglass (Ref. 27547).


IUCN Red List Status (Ref. 57073)	Threat to humans
Least Concern (LC)	Harmless

Human uses
Fisheries: commercial; aquaculture: commercial; gamefish: yes


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

Tools
Biogeographic modelling \| E-book \| Field guide \| Identification keys \| Length-frequency wizard \| Life-history tool \| Point map

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Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

Very Low, minimum population doubling time more than 14 years (tm=11-34; tmax=104)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Very high vulnerability (87 of 100)	Not marketed/unknown

Entered by Froese, Rainer

Modified by Garilao, Cristina V.

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Page last modified by : elaxamana, 15 July 2009

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